DK252388A - flow measurement - Google Patents

flow measurement

Info

Publication number
DK252388A
DK252388A DK252388A DK252388A DK252388A DK 252388 A DK252388 A DK 252388A DK 252388 A DK252388 A DK 252388A DK 252388 A DK252388 A DK 252388A DK 252388 A DK252388 A DK 252388A
Authority
DK
Denmark
Prior art keywords
thermocouple
pct
hot
control device
current source
Prior art date
Application number
DK252388A
Other languages
Danish (da)
Other versions
DK252388D0 (en
DK161260C (en
DK161260B (en
Inventor
Paul Verner Nielsen
Original Assignee
Paul Verner Nielsen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paul Verner Nielsen filed Critical Paul Verner Nielsen
Publication of DK252388D0 publication Critical patent/DK252388D0/en
Priority to DK252388A priority Critical patent/DK161260C/en
Priority to AT89901542T priority patent/ATE87736T1/en
Priority to AU29455/89A priority patent/AU2945589A/en
Priority to US07/603,684 priority patent/US5119674A/en
Priority to PCT/DK1988/000225 priority patent/WO1989011083A1/en
Priority to DE8989901542T priority patent/DE3879961T2/en
Priority to EP89901542A priority patent/EP0406244B1/en
Priority to JP1501699A priority patent/JP2579693B2/en
Publication of DK252388A publication Critical patent/DK252388A/en
Priority to SU904831649A priority patent/RU2003945C1/en
Publication of DK161260B publication Critical patent/DK161260B/en
Application granted granted Critical
Publication of DK161260C publication Critical patent/DK161260C/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0275—Measuring blood flow using tracers, e.g. dye dilution
    • A61B5/028—Measuring blood flow using tracers, e.g. dye dilution by thermo-dilution
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6847—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • G01F1/6888—Thermoelectric elements, e.g. thermocouples, thermopiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physiology (AREA)
  • Hematology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Volume Flow (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Control Of Temperature (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

PCT No. PCT/DK88/00225 Sec. 371 Date Oct. 31, 1990 Sec. 102(e) Date Oct. 31, 1990 PCT Filed Dec. 29, 1988 PCT Pub. No. WO89/11083 PCT Pub. Date Nov. 16, 1989.A flowmeter comprising a thermocouple with hot and cold junctions and a current source for causing a termperature difference between the hot and cold junctions of the thermocouple. The thermocouple is connected to the current source through a controlled switch, with a control input on the switch being connected to a control device. The control device also controls a measuring circuit, which on its input port receives a signal representing the e.m.f. of the thermocouple during the periods of time when the current from the current souce to the thermocouple is interrupted by the switch. The current source and the hot and cold junctions of the thermocouple all are connectable in series by the control device through the same two conductors which are also connected to the measuring circuit.
DK252388A 1988-05-06 1988-05-06 flow measurement DK161260C (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK252388A DK161260C (en) 1988-05-06 1988-05-06 flow measurement
PCT/DK1988/000225 WO1989011083A1 (en) 1988-05-06 1988-12-29 A flowmeter
AU29455/89A AU2945589A (en) 1988-05-06 1988-12-29 A flowmeter
US07/603,684 US5119674A (en) 1988-05-06 1988-12-29 Flowmeter
AT89901542T ATE87736T1 (en) 1988-05-06 1988-12-29 FLOWMETER.
DE8989901542T DE3879961T2 (en) 1988-05-06 1988-12-29 FLOWMETER.
EP89901542A EP0406244B1 (en) 1988-05-06 1988-12-29 A flowmeter
JP1501699A JP2579693B2 (en) 1988-05-06 1988-12-29 Flowmeter
SU904831649A RU2003945C1 (en) 1988-05-06 1990-11-05 Flowmeter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK252388A DK161260C (en) 1988-05-06 1988-05-06 flow measurement
DK252388 1988-05-06

Publications (4)

Publication Number Publication Date
DK252388D0 DK252388D0 (en) 1988-05-06
DK252388A true DK252388A (en) 1989-11-07
DK161260B DK161260B (en) 1991-06-17
DK161260C DK161260C (en) 1991-12-30

Family

ID=8112971

Family Applications (1)

Application Number Title Priority Date Filing Date
DK252388A DK161260C (en) 1988-05-06 1988-05-06 flow measurement

Country Status (9)

Country Link
US (1) US5119674A (en)
EP (1) EP0406244B1 (en)
JP (1) JP2579693B2 (en)
AT (1) ATE87736T1 (en)
AU (1) AU2945589A (en)
DE (1) DE3879961T2 (en)
DK (1) DK161260C (en)
RU (1) RU2003945C1 (en)
WO (1) WO1989011083A1 (en)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9011259D0 (en) * 1990-05-19 1990-07-11 Nashef Samer A Catheters
US5682899A (en) * 1991-05-16 1997-11-04 Ami-Med Corporation Apparatus and method for continuous cardiac output monitoring
US5582628A (en) * 1991-05-29 1996-12-10 Wood; Tony J. Unit and system for sensing fluid velocity
US5417110A (en) * 1991-05-29 1995-05-23 Wood; Tony J. Unit and system for sensing fluid velocity
US5797398A (en) 1993-08-13 1998-08-25 Thermal Technologies, Inc. Method and apparatus for measuring continuous blood flow at low power
US5509424A (en) * 1994-01-28 1996-04-23 Aws Salim Nashef Continuous cardiac output monitoring system
US5493100A (en) * 1994-12-28 1996-02-20 Pacesetter, Inc. Thermistor flow sensor and related method
DE19501347C2 (en) * 1995-01-18 1996-12-19 Draegerwerk Ag Device for measuring the flow in a fluid channel
US5557967A (en) * 1995-02-24 1996-09-24 Pacesetter, Inc. Thermopile flow sensor
DE19512111C2 (en) * 1995-04-03 1999-01-07 Ifm Electronic Gmbh Heat transfer control and / or measuring device
DE19623174C1 (en) * 1996-06-10 1997-11-27 Trilog Thermotechnik Gmbh Device for detecting a liquid or gaseous medium
GB2314161A (en) * 1996-06-10 1997-12-17 Freeze Master Ltd Detecting liquid flow in a pipe subjected to freeze blocking or heating
US6086251A (en) * 1997-12-06 2000-07-11 Drager Medizintechnik Gmbh Process for operating a thermocouple to measure velocity or thermal conductivity of a gas
US6085588A (en) * 1998-05-12 2000-07-11 Therm-O-Disc, Incorporated Flow rate sensor
US6553828B1 (en) * 1998-09-02 2003-04-29 Idaho State University Cooled dual element thermocouple computer and flow velocity measurement method
DE19909469C1 (en) * 1999-03-04 2000-09-28 Draegerwerk Ag Device and method for measuring the flow rate of a fluid
EP1227304A4 (en) * 1999-10-29 2006-07-12 Mitsui Mining & Smelting Co Flowmeter
JP4316083B2 (en) * 1999-12-15 2009-08-19 三井金属鉱業株式会社 Thermal flow meter with fluid discrimination function
DK1237466T3 (en) 1999-12-17 2007-08-13 Hove Jens Method and apparatus for measuring flow rate
DE10115624C2 (en) * 2001-03-29 2003-09-18 Draegerwerk Ag Thermal flow meter
JP4472996B2 (en) 2002-03-15 2010-06-02 ザ・ジェネラル・ホスピタル・コーポレイション Method for controlling a medical device that selectively destroys adipose tissue
US8840608B2 (en) 2002-03-15 2014-09-23 The General Hospital Corporation Methods and devices for selective disruption of fatty tissue by controlled cooling
WO2004019826A1 (en) * 2002-08-29 2004-03-11 Md3 Technologies, Llc Apparatus for implanting surgical devices
US8758372B2 (en) 2002-08-29 2014-06-24 St. Jude Medical, Cardiology Division, Inc. Implantable devices for controlling the size and shape of an anatomical structure or lumen
WO2004100788A1 (en) * 2003-05-14 2004-11-25 Instrumentarium Corporation Methods, arrangement, device and sensor for urine flow measurement
JP5222552B2 (en) * 2004-04-30 2013-06-26 ミトラル・ソリューションズ・インコーポレイテッド Methods and devices for modulation of heart valve function
WO2006105084A2 (en) 2005-03-25 2006-10-05 Mitralsolutions, Inc. Methods and apparatus for controlling the internal circumference of an anatomic orifice or lumen
US8864823B2 (en) * 2005-03-25 2014-10-21 StJude Medical, Cardiology Division, Inc. Methods and apparatus for controlling the internal circumference of an anatomic orifice or lumen
WO2007019304A2 (en) * 2005-08-05 2007-02-15 Wrd Corporation Adaptive cooling method for computer rack enclosure
JP4784449B2 (en) * 2006-01-12 2011-10-05 株式会社デンソー Seal structure of rotating part and air conditioner using the same
US7854754B2 (en) 2006-02-22 2010-12-21 Zeltiq Aesthetics, Inc. Cooling device for removing heat from subcutaneous lipid-rich cells
US9132031B2 (en) 2006-09-26 2015-09-15 Zeltiq Aesthetics, Inc. Cooling device having a plurality of controllable cooling elements to provide a predetermined cooling profile
US20080077201A1 (en) 2006-09-26 2008-03-27 Juniper Medical, Inc. Cooling devices with flexible sensors
US8192474B2 (en) 2006-09-26 2012-06-05 Zeltiq Aesthetics, Inc. Tissue treatment methods
EP2111189B1 (en) * 2007-01-03 2017-04-05 St. Jude Medical, Cardiology Division, Inc. Implantable devices for controlling the size and shape of an anatomical structure or lumen
WO2008097999A2 (en) * 2007-02-05 2008-08-14 Mitralsolutions, Inc. Minimally invasive system for delivering and securing an annular implant
US20080287839A1 (en) 2007-05-18 2008-11-20 Juniper Medical, Inc. Method of enhanced removal of heat from subcutaneous lipid-rich cells and treatment apparatus having an actuator
DE102007023823B4 (en) * 2007-05-21 2014-12-18 Abb Ag Thermal mass flow meter and method of operation
US20090018626A1 (en) * 2007-07-13 2009-01-15 Juniper Medical, Inc. User interfaces for a system that removes heat from lipid-rich regions
US20090018625A1 (en) * 2007-07-13 2009-01-15 Juniper Medical, Inc. Managing system temperature to remove heat from lipid-rich regions
US20090018624A1 (en) * 2007-07-13 2009-01-15 Juniper Medical, Inc. Limiting use of disposable system patient protection devices
US8523927B2 (en) 2007-07-13 2013-09-03 Zeltiq Aesthetics, Inc. System for treating lipid-rich regions
EP3488833A1 (en) 2007-08-21 2019-05-29 Zeltiq Aesthetics, Inc. Monitoring the cooling of subcutaneous lipid-rich cells, such as the cooling of adipose tissue
WO2010036732A1 (en) 2008-09-25 2010-04-01 Zeltiq Aesthetics, Inc. Treatment planning systems and methods for body contouring applications
US8603073B2 (en) 2008-12-17 2013-12-10 Zeltiq Aesthetics, Inc. Systems and methods with interrupt/resume capabilities for treating subcutaneous lipid-rich cells
JP2012515624A (en) * 2009-01-22 2012-07-12 セント・ジュード・メディカル，カーディオロジー・ディヴィジョン，インコーポレイテッド Postoperative adjustment tool, minimally invasive mounting device, and adjustable tricuspid valve ring
BRPI1007540A2 (en) * 2009-01-22 2016-02-16 St Jude Medical Cardiology Div device and method for adjusting at least one of the shape and size of an anatomical or lumen orifice
JP5519000B2 (en) 2009-04-30 2014-06-11 ゼルティック エステティックス インコーポレイテッド Devices, systems, and methods for removing heat from fat-rich subcutaneous cells
JP2013517897A (en) 2010-01-25 2013-05-20 ゼルティック エステティックス インコーポレイテッド Home applicator and associated devices, systems and methods for non-invasively removing heat from subcutaneous multilipid cells via phase change coolant
IL204752A (en) * 2010-03-25 2015-08-31 Vasa Applied Technologies Ltd Method and apparatus for determining flow rates of excreted or secreted body fluids
US8676338B2 (en) 2010-07-20 2014-03-18 Zeltiq Aesthetics, Inc. Combined modality treatment systems, methods and apparatus for body contouring applications
WO2012033908A1 (en) * 2010-09-09 2012-03-15 Masco Corporation Self-energizing fluid flow detection system
US11814821B2 (en) 2011-01-03 2023-11-14 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with fluid leak detection and geo-fencing control
US9146172B2 (en) * 2011-01-03 2015-09-29 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection
US9759632B2 (en) 2011-01-03 2017-09-12 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection and freeze burst prevention
US11608618B2 (en) 2011-01-03 2023-03-21 Sentinel Hydrosolutions, Llc Thermal dispersion flow meter with fluid leak detection and freeze burst prevention
WO2012103242A1 (en) 2011-01-25 2012-08-02 Zeltiq Aesthetics, Inc. Devices, application systems and methods with localized heat flux zones for removing heat from subcutaneous lipid-rich cells
IL213767A (en) * 2011-06-23 2017-05-29 Adler Michael Method and apparatus for measuring the flow rate of a liquid
US9176163B2 (en) * 2011-11-14 2015-11-03 Linear Technology Corporation Anemometer detecting thermal time constant of sensor
US9545523B2 (en) 2013-03-14 2017-01-17 Zeltiq Aesthetics, Inc. Multi-modality treatment systems, methods and apparatus for altering subcutaneous lipid-rich tissue
US9844460B2 (en) 2013-03-14 2017-12-19 Zeltiq Aesthetics, Inc. Treatment systems with fluid mixing systems and fluid-cooled applicators and methods of using the same
WO2015117001A1 (en) 2014-01-31 2015-08-06 Zeltiq Aesthetics, Inc. Compositions, treatment systems and methods for improved cooling of lipid-rich tissue
US10675176B1 (en) 2014-03-19 2020-06-09 Zeltiq Aesthetics, Inc. Treatment systems, devices, and methods for cooling targeted tissue
USD777338S1 (en) 2014-03-20 2017-01-24 Zeltiq Aesthetics, Inc. Cryotherapy applicator for cooling tissue
DE102014005809A1 (en) * 2014-04-24 2015-10-29 Eagle Actuator Components Gmbh & Co. Kg Circuit for temperature compensation
US10952891B1 (en) 2014-05-13 2021-03-23 Zeltiq Aesthetics, Inc. Treatment systems with adjustable gap applicators and methods for cooling tissue
JP6225940B2 (en) * 2014-06-03 2017-11-08 株式会社デンソー Anemometer, wind direction meter and moving direction meter
US10568759B2 (en) 2014-08-19 2020-02-25 Zeltiq Aesthetics, Inc. Treatment systems, small volume applicators, and methods for treating submental tissue
US10935174B2 (en) 2014-08-19 2021-03-02 Zeltiq Aesthetics, Inc. Stress relief couplings for cryotherapy apparatuses
ES2934139T3 (en) * 2015-01-05 2023-02-17 Nipro Corp Blood flow meter and measuring device
US11154418B2 (en) 2015-10-19 2021-10-26 Zeltiq Aesthetics, Inc. Vascular treatment systems, cooling devices, and methods for cooling vascular structures
KR20220098285A (en) 2016-01-07 2022-07-11 젤티크 애스세틱스, 인코포레이티드. Temperature-dependent adhesion between applicator and skin during cooling of tissue
US10765552B2 (en) 2016-02-18 2020-09-08 Zeltiq Aesthetics, Inc. Cooling cup applicators with contoured heads and liner assemblies
US11382790B2 (en) 2016-05-10 2022-07-12 Zeltiq Aesthetics, Inc. Skin freezing systems for treating acne and skin conditions
US10682297B2 (en) 2016-05-10 2020-06-16 Zeltiq Aesthetics, Inc. Liposomes, emulsions, and methods for cryotherapy
US10555831B2 (en) 2016-05-10 2020-02-11 Zeltiq Aesthetics, Inc. Hydrogel substances and methods of cryotherapy
GB201609905D0 (en) * 2016-06-07 2016-07-20 Ge Oil & Gas Device and system for fluid flow measurement
US11076879B2 (en) 2017-04-26 2021-08-03 Zeltiq Aesthetics, Inc. Shallow surface cryotherapy applicators and related technology
JP6867909B2 (en) * 2017-08-02 2021-05-12 アズビル株式会社 Thermal flow meter
JP2019035640A (en) * 2017-08-14 2019-03-07 アズビル株式会社 Thermal flow meter
DE202017006045U1 (en) * 2017-11-22 2019-02-25 Gebr. Kemper Gmbh + Co. Kg Metallwerke Device for monitoring the flushing activities of a water pipe
AU2019315940A1 (en) 2018-07-31 2021-03-04 Zeltiq Aesthetics, Inc. Methods, devices, and systems for improving skin characteristics

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1996943A (en) * 1929-12-19 1935-04-09 Detroit Lubricator Co Fluid measuring device
US2540822A (en) * 1945-04-06 1951-02-06 Charles E Hastings Thermal air-speed indicator
US2745283A (en) * 1950-01-23 1956-05-15 Hastings Instr Company Inc Temperature change compensated thermal measuring device
GB1193973A (en) * 1966-11-02 1970-06-03 Graviner Colnbrook Ltd Improvements in Apparatus Responsive to Fluid Flow
GB1230638A (en) * 1968-06-08 1971-05-05
US4016758A (en) * 1975-09-09 1977-04-12 Taylor Julian S Thermal gauge probe
US4240441A (en) * 1978-10-10 1980-12-23 The United States Of America As Represented By The Secretary Of The Navy Carotid thermodilution catheter
SE440700B (en) * 1980-04-02 1985-08-12 Egon Wolfshorndl Device for measuring the speed of a flowing medium
FR2489928B1 (en) * 1980-09-05 1986-04-04 Chevron Res METHOD AND APPARATUS FOR DETECTING THE FLOW OF A FLUID
DE3112144A1 (en) * 1981-03-27 1982-10-07 Degussa Ag, 6000 Frankfurt "Thermal flowmeter"
US4848147A (en) * 1987-07-10 1989-07-18 Bailey James L Thermal transient anemometer

Also Published As

Publication number Publication date
DK252388D0 (en) 1988-05-06
DK161260C (en) 1991-12-30
DE3879961T2 (en) 1993-07-15
ATE87736T1 (en) 1993-04-15
RU2003945C1 (en) 1993-11-30
JPH03504041A (en) 1991-09-05
DE3879961D1 (en) 1993-05-06
JP2579693B2 (en) 1997-02-05
US5119674A (en) 1992-06-09
DK161260B (en) 1991-06-17
WO1989011083A1 (en) 1989-11-16
EP0406244B1 (en) 1993-03-31
AU2945589A (en) 1989-11-29
EP0406244A1 (en) 1991-01-09

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